
html, body {
    width: 100%;
    height: 100%;

    background-color: #222;
}

.content {
    width: 100%;
    height: 100%;
}

/* stage -- start */
.stage {
    position: relative;

    width: 100%;
    height: 680px;
}

/* stage -- end */

/* image -- start */
.img-sec {
    position: relative;

    width: 100%;
    height: 100%;
    overflow: hidden;
    border: 1px solid #d3dce6;
    border-radius: 4px;

    background-color: #3c2f2f;

    perspective: 1800px;
}

.img-figure {
    position: absolute;

    margin: 0;
    padding: 20px;

    background-color: #fff;
    box-shadow: 0 2px 4px 0 rgba(0,0,0,.12), 0 0 6px 0 rgba(0,0,0,.04);

    box-sizing: border-box;
    cursor: pointer;
    transform-origin: 0 50% 0;
    transform-style: preserve-3d;
    transition: transform .6s ease-in-out, left .6s ease-in-out, top .6s ease-in-out;

}

.img-figure.is-inverse {
    transform: translate(320px) rotateY(180deg);
}

figcaption {
    text-align: center;
}

.img-title {
    margin: 20px 0 0 0;

    color: #666;
    font-size: 16px;
}

.img-back {
    position: absolute;
    top: 0;
    left: 0;

    width: 100%;
    height: 100%;
    padding: 50px 40px;
    overflow: hidden;

    color: #333;
    font-size: 22px;
    line-height: 1.25;
    text-align: left;

    background: url('../images/background.jpg') no-repeat;
    background-size: 100% 100%;

    box-sizing: border-box;
    transform: rotateY(180deg) translateZ(1px);
    backface-visibility: hidden;

}

.img-back p {
    margin: 0;
}

/* image -- end */

/* controller -- start */
.controller-nav {

}

/* controller -- end */
